Modelling velocity saturation and kink effects in p-channel polysilicon thin-film transistors (Articolo in rivista)

Type
Label
  • Modelling velocity saturation and kink effects in p-channel polysilicon thin-film transistors (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.tsf.2006.11.110 (literal)
Alternative label
  • Valletta A; Gaucci P; Mariucci L; Fortunato G; (2007)
    Modelling velocity saturation and kink effects in p-channel polysilicon thin-film transistors
    in Thin solid films (Print); Elsevier Science SA, Lausanne (Svizzera)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Valletta A; Gaucci P; Mariucci L; Fortunato G; (literal)
Pagina inizio
  • 7417 (literal)
Pagina fine
  • 7421 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0040609006014684 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 515 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 19 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IFN-CNR, Via Cineto Romano 42, 00156 Roma, Italy (literal)
Titolo
  • Modelling velocity saturation and kink effects in p-channel polysilicon thin-film transistors (literal)
Abstract
  • Experimental measurements and full-2D numerical simulations show that velocity saturation effects in polysilicon thin-film transistor (TFTs) cannot be neglected in order to obtain a precise modelling of output characteristics. Since full-2D numerical simulations are time consuming and unpractical for circuit simulations, we have developed a new quasi-2D model, that takes into account both velocity saturation effects and the presence of a longitudinal electric field in the Poisson's equation, and includes the effect of parasitic bipolar transistor (PBT) action to reproduce kink effect. The agreement of the quasi-2D model with experimental data from p-channel polysilicon TFTs is very satisfactory even for short channel device, and the presence of a velocity-saturated region with a nearly constant free carrier concentration is reproduced without introducing further assumptions. (literal)
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